具有Symfony组件的自定义框架的路由系统

Question

My directory Structure is shown above. I am trying to build a Framework with Symfony Components. but one problem, when I hit a route that I defined, it doesn't give me back the response.

Here is my index.php

<?php

$loader = require 'vendor/autoload.php';
$loader->register();

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;

require 'lib/Framework/Core.php';
$request = Request::createFromGlobals();

// Our Framework is now handling itself the request
$app = new Framework\Core();

$app->map('/', function () {
    return new Response('This is the home page');
});

$app->map('/about', function () {
    return new Response('This is the about page');
});

$response = $app->handle($request);

and my Core.php looks like this

<?php namespace Framework;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\HttpKernelInterface as HttpKernelInterface;

class Core implements HttpKernelInterface
{
    protected $routes = array();

    public function handle(Request $request, $type = HttpKernelInterface::MASTER_REQUEST, $catch = true)
    {
        $path = $request->getPathInfo();

        // Does this URL match a route?
        if (array_key_exists($path, $this->routes)) {
            // execute the callback
            $controller = $this->routes[$path];
            $response = $controller();
        } else {
            // no route matched, this is a not found.
            $response = new Response('Not found!', Response::HTTP_NOT_FOUND);
        }

        return $response;
    }

    // Associates an URL with a callback function
    public function map($path, $controller) {
        $this->routes[$path] = $controller;
    }
}

Does anyone know what the bug is? What did I screw up?

Answer 1

As I mentioned in the comments, you're just missing the last little detail (->send()) where you tell the Response object to send the headers and echo the content. So:

$response = $app->handle($request);
$response->send();

And I think that should do it!

Cheers!